Saponins from Zygophyllum gaetulum.
Three new bisdesmosidic triterpene saponins, zygophylosides I (1), L (2) and M (3), and three known quinovic acid glycosides were isolated from Zygophyllum gaetulum. The new compounds were determined to be 3 beta-O-alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl- (1-->2)-beta-d-glucopyranosylurs-20(21)-en-28-oic acid 28-O-[beta-D-2-O-sulfonylglucopyranosyl] ester (1),3 beta-O- [alpha-L-rhamnopyranosyl-(1-->2)-alpha-L-arabinopyranosyl- (1-->2)-beta-D-glucopyranosyl]urs-20(21)-en-28-oic acid 28-O-[beta-D-glucopyranosyl] ester (2), and 3 beta-O-beta-D-quinovopyranosyl-27-nor-olean-12-en-28-oic acid 28-O-beta-D-glucopyranosyl ester (3) by use of 1D and 2D NMR techniques.
Safir
O
O
Laboratoire de Chimie de Plantes et de Synthése Organique et Bioorganique, Faculté des Sciences, Rabat, Morocco.
Fkih-Tetouani
S
S
De Tommasi
N
N
Aquino
R
R
D002240:Carbohydrate Sequence; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes
D012503:Saponins; D014315:Triterpenes; C110801:zygophyloside I; C110802:zygophyloside L; C110803:zygophyloside M